Phosphoric acid is a triprotic acid, ionizing in the following sequential steps:. H3PO4 H2O H2PO4 - H3O Ka 1
H2PO4 - H2O HPO4 2- H3O Ka2
HPO4 2- H2O PO4 3- H3O Ka3
What is the Kb expression for the base, sodium phosphate?

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

Esign techniques and materials that reduce the negative environmental impact of a structure are referred to as

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.